485281380 has 96 divisors (see below), whose sum is σ = 1381484160. Its totient is φ = 127267840.

The previous prime is 485281373. The next prime is 485281399. The reversal of 485281380 is 83182584.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1726840 + ... + 1727120.

It is an arithmetic number, because the mean of its divisors is an integer number (14390460).

Almost surely, 2^485281380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485281380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690742080).

485281380 is an abundant number, since it is smaller than the sum of its proper divisors (896202780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485281380 is a wasteful number, since it uses less digits than its factorization.

485281380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 485281380 is about 22029.1030230466. The cubic root of 485281380 is about 785.8347132844.

The spelling of 485281380 in words is "four hundred eighty-five million, two hundred eighty-one thousand, three hundred eighty".